CN201926431U - Expansion classifier - Google Patents
Expansion classifier Download PDFInfo
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- CN201926431U CN201926431U CN2010206820904U CN201020682090U CN201926431U CN 201926431 U CN201926431 U CN 201926431U CN 2010206820904 U CN2010206820904 U CN 2010206820904U CN 201020682090 U CN201020682090 U CN 201020682090U CN 201926431 U CN201926431 U CN 201926431U
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- classifier
- harmomegathus
- camera
- expansion
- pcb board
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Abstract
The utility model discloses an expansion classifier. The expansion classifier is characterized by comprising an expansion classifier body; a moveable mounting rack and a display device used for displaying measuring data are erected on the expansion classifier body; cameras used for capturing images and a first linear motor used for controlling the movement of the cameras are installed on the mounting rack; and a second linear motor used for controlling the movement of the mounting rack and a controller used for controlling the operation of the expansion classifier are arranged in the expansion classifier. In the expansion classifier provided by the utility model, for the reason that the moveable mounting rack is arranged on the expansion classifier, the cameras are arranged on the mounting rack, and the linear motors used for controlling the movement of the cameras and the mounting rack are arranged, a hole or copper on a PCB (printed circuit board) is captured through the cameras, distance between the two holes is measured, the distance is compared with the theoretic distance through the controller, thereby calculating the expansion value of the PCB.
Description
Technical field
The utility model relates to the production technical field of PCB, particularly a kind of harmomegathus classifier that is used to measure pcb board harmomegathus value.
Background technology
See also Fig. 1, the manufacturing process of pcb board (Printed Circuit Board, printed circuit board) generally comprises: paste steps such as light-sensitive surface, exposure, development treatment, etch processes, membrane removal.When exposure, when developing failure, light-sensitive surface need be removed, repaint egative film and repeat above-mentioned steps again.
From workflow shown in Figure 1 as can be known, underproof pcb board is not only wasted production capacity, is prolonged the running period of pcb board, and consumes and move back starting material such as wash water, dry film, and the production cost of pcb board is significantly risen.
The harmomegathus value of all pcb boards should design intermediate value u around egative film under the ideal state, and is normal distribution, as shown in Figure 2.But when actual exposure, the central value U1 of pcb board harmomegathus can change, and the Design Theory central value of itself and egative film is also inconsistent, distribution as shown in Figure 3.So loss appears sowing in chance for exposure, exposure machine sow the loss with centre deviation value corresponding relation as shown in Figure 4.
By the contrast of Fig. 2 and Fig. 3, pcb board is in when exposure as can be known, and the pcb board that its harmomegathus value exceeds upper specification limit and lower limit can be exposed machine and play and move back, and these pcb boards that exceed the specification upper and lower limit need repaint egative film.
As seen, in pcb board image transfer manufacturing process, make the confusion that difficult point is product harmomegathus value for very big one, existing exposure machine must be provided with the harmomegathus scope of comparison strictness in order to reach the required precision of product, and this just causes the exposure success ratio of exposure machine very low, had a strong impact on production capacity, and be determined the PCB of defective exposure, still can't carry out accurately defining of harmomegathus scope, the waste of the former materials such as egative film and tool that cause exposing.
Thereby prior art is still waiting to improve and improve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of harmomegathus classifier, can accurately measure the harmomegathus value of pcb board, thereby reduces the scrappage of product.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of harmomegathus classifier, wherein, comprise harmomegathus classifier body, the display device of putting on the shelf and being provided with erecting frame movably and being used to show measurement data at described harmomegathus classifier body, on described erecting frame, be equiped with the camera that is used to catch image and be used to control first linear motor that camera moves, be provided with in the described harmomegathus classifier and be used to control second linear motor that erecting frame moves and the controller of control harmomegathus classifier work.
Described harmomegathus classifier, wherein, described harmomegathus classifier body is provided with scrambler, and described scrambler is connected with controller.
Described harmomegathus classifier, wherein, described erecting frame is provided with the optical fiber that is used to transmit data.
Described harmomegathus classifier, wherein, described camera comprises first camera and second camera, and described first camera is positioned at a side of erecting frame, and second camera is positioned at a relative side of first camera.
Described harmomegathus classifier, wherein, described harmomegathus classifier body is provided with the travelling belt that is used to transmit pcb board.
The harmomegathus classifier that the utility model provides, owing on described harmomegathus classifier body, movably erecting frame is set, camera is set on erecting frame, be used to control the linear motor that camera and erecting frame move, by hole or the copper on the camera seizure pcb board, measure the distance between two holes, should distance compare by controller, thereby calculate the harmomegathus value of pcb board with theoretical.
When the harmomegathus classifier is measured, by the distance between two holes of first linear motor control camera traverse measurement pcb board broad ways, again by the distance between second linear motor control erecting frame traverse measurement pcb board, two holes along its length, realized full automatic working, and the measurement of its harmomegathus value is accurate.
The harmomegathus classifier that the utility model embodiment provides, can effectively improve the mobility of the machine that exposes to the sun, can reduce pcb board carries in process of production, and reduced and scrapped, thereby avoided the frequent in process of production scratch of egative film, and when measuring harmomegathus, when big, can prepare the egative film of different harmomegathus values in advance, shorten the production cycle.
Description of drawings
Fig. 1 produces the process flow diagram of pcb board for prior art.
Fig. 2 is desirable harmomegathus distribution plan.
Fig. 3 is the synoptic diagram of prior art harmomegathus value and the skew of egative film value.
The synoptic diagram of sowing loss and centre deviation value corresponding relation of prior art exposure machine among Fig. 4.
The structural representation of the harmomegathus classifier that Fig. 5 provides for the utility model embodiment.
Fig. 6 is the synoptic diagram by harmomegathus value after the adjustment of harmomegathus classifier and the skew of egative film value.
Embodiment
The utility model provides a kind of harmomegathus classifier, and is clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below with reference to accompanying drawing and give an actual example the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 5, described harmomegathus classifier comprises harmomegathus classifier body 11, and putting on the shelf at harmomegathus classifier body 11 is provided with erecting frame 12 and display device 13.Described erecting frame 12 can move (being the dotted line direction among Fig. 5) in harmomegathus classifier body 11 upper edge Y directions, and it is provided with the camera and first linear motor 121.Described linear motor is used to control camera and moves (promptly moving to the erecting frame direction) along X-direction.
In described harmomegathus classifier body 11, be provided with the second linear motor (not shown) and controller (not shown).Described second linear motor is used to control erecting frame 12 and moves along Y direction, and controller is connected with display device 13 with camera, first linear motor 121, second linear motor respectively, is used to control the work of whole harmomegathus classifier.
Please continue to consult Fig. 5, described harmomegathus classifier also comprises scrambler, and this scrambler comprises X-axis scrambler 14 and Y-axis scrambler (not shown), and these two scramblers are connected with controller respectively.Wherein, described X-axis scrambler 14 is positioned on the described harmomegathus classifier body 11, be used to feed back the signal of advancing of camera, make controller control first linear motor and carry out corresponding actions, the Y-axis scrambler is positioned at harmomegathus classifier body 11, be used to feed back the signal of advancing of erecting frame 12, make controller control first linear motor and carry out corresponding actions.
The harmomegathus classifier that the utility model embodiment provides also is provided with optical fiber 124 on described erecting frame 12, with the data of transmitting camera collection fast.Wherein, described camera comprises first camera 122 and second camera 123, and described first camera 122 is positioned at a side of erecting frame 12, and second camera 123 is positioned at a relative side of first camera 122, mode as shown in Figure 5.
Wherein, this first camera 122 and second camera 123 all are subjected to 121 controls of first linear motor, and only logical mobile along X-direction (being the erecting frame direction).
Operated by rotary motion is useful on hole or the copper or the round dot of location around pcb board.When measuring, first camera 122 is used for catching rapidly two holes or the copper of a side on the pcb board, second camera 123 is used for catching rapidly two holes or the copper of opposite side on the pcb board, promptly measure pcb board respectively along the distance between the hole of the hole of X-direction and Y direction by these two cameras, the realization distance that records by controller calculating camera is compared with theoretical then, thereby calculates the harmomegathus value of pcb board reality.
In the specific implementation, described first camera 122 and second camera 123 all fall in the product approach axis, and when measuring perpendicular to pcb board, make camera catch accurate positioning, and the harmomegathus classifier is measured rapidly, the data feedback accurately.
For the ease of the transmission of pcb board on the harmomegathus classifier, described harmomegathus classifier body 11 is provided with the travelling belt 125 that is used to transmit on the pcb board.
The controller that present embodiment provides is a computing machine, it is the control hinge of harmomegathus classifier, be used to drive first linear motor 121, the rotation of second linear motor, make camera and erecting frame corresponding mobile, thereby make camera can capture the hole or the copper at pcb board edge rapidly,, obtain the harmomegathus value of pcb board according to the image that camera obtains, thereby intermediate value u1 after obtaining being offset and standard deviation, and with production sharing five classes: the first kind: deviate is 40um; Second class: deviate greater than-80um less than-40um; The 3rd class: deviate greater than 40um less than 80um; The 4th class: deviate is less than-80um; The 5th class: deviate is greater than 80um.
When formal production, the intermediate value u1 of gained is set at central value, simultaneously according to the central value u1 after the skew as egative film harmomegathus design load, simultaneously with the setting value of specification deviate 40um as exposure machine, its harmomegathus value is offset as shown in Figure 6 with the egative film value.So after this harmomegathus classifier measurement, the pcb board of adjustment and the off-set value of egative film can meet the demands exposure, thereby have improved the mobility of exposure machine, and it is sowed for absolutely, so sowing of exposure machine promotes 34.13% at least.
In a further embodiment, be provided with illumination control card, operation control card, the control system etc. of entire equipment in described harmomegathus classifier body 11, and this harmomegathus classifier joins uninterrupted power source in addition, loss of data and equipment take place unusual when preventing to cut off the power supply.And this harmomegathus classifier adopts the windows system to be aided with its software of operation.
Before volume production, PCB examination earlier can be surveyed 20, its concrete steps are as follows:
By operating personnel pcb board is placed on the travelling belt, pcb board is delivered to the below of erecting frame by travelling belt, by controller control first linear motor rotation earlier, make first camera and second camera move two holes or the copper of rapid seizure pcb board upper edge X-direction, controlling second linear motor by controller then rotates, erecting frame is moved along the Y direction of harmomegathus classifier body, make first camera and second camera catch two holes or the copper of pcb board upper edge Y direction rapidly, thereby four pilot holes on the measurement pcb board are along the distance between pcb board width and the length direction, calculate the harmomegathus value of pcb board again according to theoretical, and on display device, show.
In sum, the harmomegathus classifier that the utility model provides, owing on described harmomegathus classifier body, movably erecting frame is set, camera is set on erecting frame, be used to control the linear motor that camera and erecting frame move, catch hole or copper on the pcb board, measure the distance between two holes by camera, should distance compare by controller, thereby calculate the harmomegathus value of pcb board with theoretical.
When the harmomegathus classifier is measured, by the distance between two holes of first linear motor control camera traverse measurement pcb board broad ways, again by the distance between second linear motor control erecting frame traverse measurement pcb board, two holes along its length, realized full automatic working, and the measurement of its harmomegathus value is accurate.
The harmomegathus classifier that the utility model embodiment provides, can effectively improve the mobility of the machine that exposes to the sun, can reduce pcb board carries in process of production, and reduced and scrapped, thereby avoided the frequent in process of production scratch of egative film, and when measuring harmomegathus, when big, can prepare the egative film of different harmomegathus values in advance, shorten the production cycle.
Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the utility model.
Claims (5)
1. harmomegathus classifier, it is characterized in that, comprise harmomegathus classifier body, the display device of putting on the shelf and being provided with erecting frame movably and being used to show measurement data at described harmomegathus classifier body, on described erecting frame, be equiped with the camera that is used to catch image and be used to control first linear motor that camera moves, be provided with in the described harmomegathus classifier and be used to control second linear motor that erecting frame moves and the controller of control harmomegathus classifier work.
2. harmomegathus classifier according to claim 1 is characterized in that, described harmomegathus classifier body is provided with scrambler, and described scrambler is connected with controller.
3. harmomegathus classifier according to claim 1 is characterized in that described erecting frame is provided with the optical fiber that is used to transmit data.
4. harmomegathus classifier according to claim 1 is characterized in that, described camera comprises first camera and second camera, and described first camera is positioned at a side of erecting frame, and second camera is positioned at a relative side of first camera.
5. harmomegathus classifier according to claim 1 is characterized in that, described harmomegathus classifier body is provided with the travelling belt that is used to transmit pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206820904U CN201926431U (en) | 2010-12-27 | 2010-12-27 | Expansion classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206820904U CN201926431U (en) | 2010-12-27 | 2010-12-27 | Expansion classifier |
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| Publication Number | Publication Date |
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| CN201926431U true CN201926431U (en) | 2011-08-10 |
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| CN2010206820904U Expired - Fee Related CN201926431U (en) | 2010-12-27 | 2010-12-27 | Expansion classifier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575245A (en) * | 2012-07-31 | 2014-02-12 | 西克股份公司 | Detection system for mounting on a conveyor belt |
| CN105717154A (en) * | 2016-05-05 | 2016-06-29 | 东旭科技集团有限公司 | Device and method for measuring shrinking percentage of panels |
| CN107231750A (en) * | 2016-03-24 | 2017-10-03 | 全亨科技有限公司 | Circuit board expansion and shrinkage classification method |
| CN110753451A (en) * | 2018-07-23 | 2020-02-04 | 东莞市多普光电设备有限公司 | Device for monitoring expansion and contraction of negative film on line |
| CN112272449A (en) * | 2020-10-20 | 2021-01-26 | 惠州市特创电子科技有限公司 | Circuit board production system and expansion and contraction board separating device |
-
2010
- 2010-12-27 CN CN2010206820904U patent/CN201926431U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575245A (en) * | 2012-07-31 | 2014-02-12 | 西克股份公司 | Detection system for mounting on a conveyor belt |
| CN107231750A (en) * | 2016-03-24 | 2017-10-03 | 全亨科技有限公司 | Circuit board expansion and shrinkage classification method |
| CN105717154A (en) * | 2016-05-05 | 2016-06-29 | 东旭科技集团有限公司 | Device and method for measuring shrinking percentage of panels |
| CN110753451A (en) * | 2018-07-23 | 2020-02-04 | 东莞市多普光电设备有限公司 | Device for monitoring expansion and contraction of negative film on line |
| CN112272449A (en) * | 2020-10-20 | 2021-01-26 | 惠州市特创电子科技有限公司 | Circuit board production system and expansion and contraction board separating device |
| CN112272449B (en) * | 2020-10-20 | 2021-12-07 | 惠州市特创电子科技股份有限公司 | Circuit board production system and expansion and contraction board separating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20161227 |